Nut-lock



(No Model.) 8

J.'W. KA VEAR 8v 0.15. GIBBS NUT LOCK. No. 588,838. Patented Aug.17,1897.`

Y VUNITED STATES PATENT OFFICE.

JOI-IN lV. KA VEAR AND CHARLES E. GIBBS, OF NORTH DEOATUR, GEORGIA.

vNur-Lock.

SPECIFICATION forming part of Letters PatentNo. 588,338, dated August17, 1897.

Application nei July 8,1896. saisine. 5981454. or@ modell.)

To all whom it may concern! Be it known that we, JOHN W. KA YEAR andCHARLES E. GIBBs, citizens o f the United States, residing at NorthDecatur, in .the countyof'De Kalb and State of Georgia, have inventedcertain new and useful'lrnprovements in Nut-Locks; and we do herebydeclare the following to be a full, clear, and eX- act description ofthe invention, such as will Venable others skilled in the art to whichit appertains to make and use the same.

to screw upon said bolt with the shoulder or extension thereonprojecting through the slot in said locking-plate. 'f

The invention also consists in vother details of construction andcombinations of parts, which will be hereinafter more fully describedand claimed.

In the drawings forming part of this speci-l iication, Figure 1represents a side elevation of a section of rail, showing our nut-lockapplied thereto. Fig. 2 is a vertical section on the line x of Fig. 1.Fig. 3 is a detail perspective view of the locking-plate. Fig. 4 is adetail perspective View of one of the nuts.

Like reference-nu merals indicate like parts in the diiferent views.

Our Aimproved nut-lock is especially designed for the purpose ofpreventing the disengagement of nuts employed upon bolts for securingsh-platesin place and has been so illustrated in the drawingsaccompanying this specification. It is obvious, however, that it may beapplied to use wherever it is a desideratum to prevent nuts frombecoming disengaged from bolts. The rail l is of the ordinary form ofconstruction, having a T-head 2, and fish-plates 3 3, attached to thesides of the webs 4 thereof. Passing through the fishplates 3 and theweb 4 are bolts 5 5, having the locking-nuts 6 6 upon their outer ends.VBetween the nuts 6 and the outer fish-plate 3 is a locking-plate 7,having a series of slots 8 8 therein, which are angularly arranged andprovided with parallel sides and are open at their lower ends. Thisplate is, as stated, adapted to rest against the side of the iishplate3. The nuts 6 6 are of the usual size, but are formed with rectangularshoulders or extensions 9 upon their inner surfaces, the said shouldersbeing slightly thicker than the locking-plate 7, adapted to fit withinthe slots 8 inv said locking-plate and formed without screw-threads.

In'applying our device the nuts 6 are seated in place on the bolts 5,and the locking-plate 7 is then passed downwardly along the side of thefish-plate 3 with the slots 8 therein embracing the rectangularshoulders or eXtensions 9 on the nuts 6. When thus in place, it isabsolutely impossible for the nuts 6 to become detached from the ends ofthe bolts 5, as the turning of the same is prevented by the engagementof the sides of the shoulders 9 with the sides of the slots S.

Having now described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

1. In a nut-lock, the combination with a bolt, of a nut thereon having arectangular shoulder or extension thereon, and a locking-plate having adiagonally-arranged slot therein adapted to be passed around therectangular extension on said nut.

2. In a nut-lock, the combination with a bolt, of a nut thereon having arectangular shoulder or extension upon one side thereof, and alocking-plate having a diagonally-arranged slot therein with parallelsides and an open lower end adapted to be passed around the extension onsaid nut, substantiallyv as and for the purpose described.

3. The combination with a rail and ashplate, of a plurality of bolts forsecuring the sh-plate to said rail, nuts upon said bolts havingrectangular shoulders or extensions upon their inner surfaces, and alocking-plate having'a series of diagonally-arranged slots therein,having parallel sides and open at their lower ends, the said plateadapted to be inserted between the inner surface of the main part ofsaid nut and the outer surface of said Iish-plate, with the slotstherein enibracing the rectangular extensions on said nuts and the upperedges of said plate engaging the under side of the head of the rail,substantially as and for the purpose described.

4:. The combination with a rail and a fishplate, of a plurality of boltsfor securing the fish-plate to said rail, nuts upon said bolts havingrectangular shoulders or extensions upon theirinner surfaces, and alocking-plate having a series of diagonally-arranged slots therein,having parallel sides and open at their lower ends, the said plateadapted to be inserted between the inner surface of the main part ofsaid nut and the outer surface of said fish-plate, with the slotstherein embracing the rectangular extensions on said nuts and the upperedges of said plate engaging the under side of the head of the rail, thesaid extensions being thicker than said looking-plate, substantially asand for the purpose described.

In testimony whereof we have signed this specification in the presenceof two subscribing witnesses.

JonN w. KA vEAR. CHARLES enss.

Witnesses:

B. F. BURGEss, JOSEPH DAWSON ANsELL.

